GeForce GTX 460 SE vs Radeon HD 4750

Intro

Compare that to the Radeon HD 4750, which uses a 40 nm design. AMD has set the core speed at 730 MHz. The GDDR5 RAM works at a frequency of 800 MHz on this particular model. It features 640(128x5) SPUs as well as 32 Texture Address Units and 16 ROPs.

Display Graphs

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Power Usage and Theoretical Benchmarks

Power Consumption (Max TDP)

Radeon HD 4750		75 Watts
GeForce GTX 460 SE		150 Watts
	Difference: 75 Watts (100%)

Memory Bandwidth

The GeForce GTX 460 SE should in theory perform quite a bit faster than the Radeon HD 4750 overall. (explain)

GeForce GTX 460 SE		108800 MB/sec
Radeon HD 4750		51200 MB/sec
	Difference: 57600 (113%)

Texel Rate

The GeForce GTX 460 SE should be much (more or less 34%) more effective at texture filtering than the Radeon HD 4750. (explain)

GeForce GTX 460 SE		31200 Mtexels/sec
Radeon HD 4750		23360 Mtexels/sec
	Difference: 7840 (34%)

Pixel Rate

If using a high screen resolution is important to you, then the GeForce GTX 460 SE is the winner, by far. (explain)

GeForce GTX 460 SE		20800 Mpixels/sec
Radeon HD 4750		11680 Mpixels/sec
	Difference: 9120 (78%)

Please note that the above 'benchmarks' are all just theoretical - the results were calculated based on the card's specifications, and real-world performance may (and probably will) vary at least a bit.

Price Comparison

Specifications

Memory Bandwidth: Memory bandwidth is the max amount of information (measured in megabytes per second) that can be transported past the external memory interface within a second. The number is worked out by multiplying the bus width by its memory clock speed. In the case of DDR type RAM, the result should be multiplied by 2 again. If DDR5, multiply by ANOTHER 2x. The better the bandwidth is, the faster the card will be in general. It especially helps with AA, High Dynamic Range and high resolutions.

Texel Rate: Texel rate is the maximum number of texture map elements (texels) that are processed per second. This figure is calculated by multiplying the total number of texture units of the card by the core clock speed of the chip. The higher the texel rate, the better the graphics card will be at handling texture filtering (anisotropic filtering - AF). It is measured in millions of texels applied in a second.

Pixel Rate: Pixel rate is the most pixels the graphics card can possibly record to its local memory in a second - measured in millions of pixels per second. Pixel rate is calculated by multiplying the amount of Render Output Units by the the card's clock speed. ROPs (Raster Operations Pipelines - sometimes also referred to as Render Output Units) are responsible for drawing the pixels (image) on the screen. The actual pixel rate also depends on quite a few other factors, most notably the memory bandwidth - the lower the memory bandwidth is, the lower the ability to reach the max fill rate.